Home Assistant Connect ZWA-2, Z-Wave adapter

Home Assistant Connect ZWA-2 is one of the most advanced Z-Wave interfaces specifically developed for use in the Home Assistant ecosystem. It is the perfect choice for reliably connecting Z-Wave devices over long distances, mainly due to its support for Z-Wave Long Range.

The antenna and base of the interface are precisely tuned to the Z-Wave frequency, optimising the range and stability of the connection - even through thick walls or when communicating with remote devices. Z-Wave Long Range technology not only increases the reliability of the connection, but also extends the battery life of battery-powered Z-Wave devices.

The product was developed by the Home Assistant and Z-Wave JS teams. Installation is practical plug-and-play, with easy migration from previous interfaces and one-click firmware updates.

About Nabu Casa

Home Assistant Connect ZWA-2 evolving Nabu Casa, the official organisation behind the Home Assistant project. Nabu Casa aims to make it easier for users to set up and manage a smart home, with a strong emphasis on data protection and local management.

Their best-known solutions include Home Assistant Cloud and hardware products such as Home Assistant Green and Home Assistant Yellow. Nabu Casa solutions are designed to natively support the Home Assistant platform and are primarily aimed at users who value open source, flexible and privacy-respecting smart homes.

Z-Wave® protocol overview

Protocol Z-Wave® is an interoperable, radio-frequency-based wireless communication technology specifically designed for management, monitoring and status reporting in residential and small commercial environments. As a proven and widely established solution, Z-Wave® is a world leader in control system technology, offering affordable, reliable and simple »smart« products for everyday life.

Interoperability has always been the cornerstone of the Z-Wave® protocol, along with backwards compatibility, security and reliability. All Z-Wave® devices can operate in any Z-Wave® network together with other certified Z-Wave® devices, regardless of manufacturer or brand. Any device on the network that is connected to the mains at the same time acts as a repeater - independent of the manufacturer - further increasing the reliability of the network.

More than 4,000 certified Z-Wave® products, that are backwards and forwards compatible with each other, and there are currently more than 100 million devices. The technology has more than 20 years of market presence and includes robust security mechanisms for a smarter and safer home system.

Main product features

• Precise design - The antenna and base are tuned to the ideal wavelength of Z-Wave technology for maximum range and reliable connectivity.

• Latest Z-Wave technology - It uses the latest Z-Wave 800 series chip (Silicon Labs ZG23) with full compatibility with all Z-Wave devices, including Z-Wave Plus and Plus V2.

• Dedicated Z-Wave frequency band - It operates on a separate frequency band from Wi-Fi or Bluetooth devices, ensuring stable connections even through thick walls.

• Standard Z-Wave Long Range - It enables faster and more reliable communication with remote devices and extends battery life.

• Full compatibility with Home Assistant - Designed by the Home Assistant and Z-Wave JS teams for seamless integration.

• Easy migration - Switch from most existing Z-Wave interfaces without reconfiguration.

• Second generation platform - Based on the Home Assistant Connect 2nd generation architecture (Silicon Labs ZG23) for high performance and future scalability.

• Designed for home - Elegant, candle-like design with a translucent polycarbonate housing and discreet illumination, suitable for any interior.

Smart protocols and platform compatibility

• Protocols - Z-Wave, Z-Wave Long Range

• Native compatibility - Full support in the Home Assistant environment

• Voice control - Not directly supported by Alexa or Google Assistant, but possible via Home Assistant integrations

Smart features

• Remote status monitoring (ON/OFF display in Home Assistant)

• Remote on/off

• Create automations and scenes in Home Assistant (e.g. turning on lights when motion is detected)

• One-step OTA firmware updates

• Fast migration from the previous Z-Wave interface

• Plug-and-play setup with the setup wizard

• Local action - fully functional without dependency on the cloud

• Advanced options - the second-generation platform allows for excellent scalability and future integrations

Technical specifications

• Power supply - USB-C, 5 V DC, 1 A current requirement

• Omnidirectional antenna - uniform signal transmission in all directions

• Dimensions - 125 × 125 × 315 mm

• Material - polycarbonate plastic, gloss white with translucent antenna top

• Certificates - CE, FCC, RCM, FCC-ID: 2A8ZE05

• Regions supported - All Z-Wave regions (USA, EU, Australia); current Z-Wave Long Range support: USA and EU

• Environmental conditions - for indoor use only, 0 °C to 65 °C, non-condensing environment; avoid dust, direct sunlight and heat sources